Income Taxes - Schedule of Unrecognized Tax Benefits Rollforward (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefits, beginning of period	$ 2,873	$ 4,123	$ 4,456
Additions:
Relating to positions taken during current year	1,624	1	879
Relating to positions taken during prior year	0	47	260
Reductions:
Relating to tax settlements	0	(293)	(678)
Relating to positions taken during prior year	0	(47)	(164)
Relating to lapse in statute	(249)	(958)	(630)
Unrecognized tax benefits, end of period	$ 4,248	$ 2,873	$ 4,123

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The gross amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns as of the balance sheet date.

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-Name Accounting Standards Codification

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The gross amount of decreases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns.

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The gross amount of decreases in unrecognized tax benefits resulting from settlements with taxing authorities.

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The gross amount of increases in unrecognized tax benefits resulting from tax positions that have been or will be taken in the tax return for the current period, excluding amounts pertaining to examined tax returns.

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The gross amount of increases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns.

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The gross amount of decreases in unrecognized tax benefits resulting from lapses of the applicable statutes of limitations.

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